US2339378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure regulating device for fluid supply systems
Assignee: Whitnash PLC
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Filing: 1941-12-19
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Granted: 1944-01-18
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Expires: 1961-12-19
Abstract
No abstract record available.
Inventors
- 👤 Clench Edward Clau Shakespeare
- 👤 Carlton Quintin Healey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:06
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/10; G05D16/109; G05D16/101; G05D16/107; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/2622; Y10T137/2625; Y10T137/2637; Y10T137/7722; Y10T137/7781
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-01-17 | 1947-07-19 | 1948-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-01-17 | 1951-07-19 | 1952-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-01-17 | 1955-07-19 | 1956-01-18 | $7700.00 | Window Closed / Lapsed |